190902426 has 96 divisors (see below), whose sum is σ = 458498880. Its totient is φ = 52631040.

The previous prime is 190902421. The next prime is 190902431. The reversal of 190902426 is 624209091.

It is an interprime number because it is at equal distance from previous prime (190902421) and next prime (190902431).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190902421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1066405 + ... + 1066583.

It is an arithmetic number, because the mean of its divisors is an integer number (4776030).

Almost surely, 2^190902426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190902426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229249440).

190902426 is an abundant number, since it is smaller than the sum of its proper divisors (267596454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190902426 is a wasteful number, since it uses less digits than its factorization.

190902426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 190902426 is about 13816.7444066973. The cubic root of 190902426 is about 575.7984381072.

The spelling of 190902426 in words is "one hundred ninety million, nine hundred two thousand, four hundred twenty-six".