142196390 has 32 divisors (see below), whose sum is σ = 292930560. Its totient is φ = 48684384.

The previous prime is 142196387. The next prime is 142196393. The reversal of 142196390 is 93691241.

It is an interprime number because it is at equal distance from previous prime (142196387) and next prime (142196393).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142196390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142196393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90431 + ... + 91989.

It is an arithmetic number, because the mean of its divisors is an integer number (9154080).

Almost surely, 2^142196390 is an apocalyptic number.

142196390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142196390 is an abundant number, since it is smaller than the sum of its proper divisors (150734170).

142196390 is a wasteful number, since it uses less digits than its factorization.

142196390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2876.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 142196390 is about 11924.6127819733. The cubic root of 142196390 is about 521.9507472014.

The spelling of 142196390 in words is "one hundred forty-two million, one hundred ninety-six thousand, three hundred ninety".