142920492 has 96 divisors (see below), whose sum is σ = 402549504. Its totient is φ = 38880000.

The previous prime is 142920487. The next prime is 142920493. The reversal of 142920492 is 294029241.

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

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

It is not an unprimeable number, because it can be changed into a prime (142920493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62367 + ... + 64617.

It is an arithmetic number, because the mean of its divisors is an integer number (4193224).

Almost surely, 2^142920492 is an apocalyptic number.

142920492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142920492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201274752).

142920492 is an abundant number, since it is smaller than the sum of its proper divisors (259629012).

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

142920492 is a wasteful number, since it uses less digits than its factorization.

142920492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319 (or 2317 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 142920492 is about 11954.9358843952. The cubic root of 142920492 is about 522.8352184491.

The spelling of 142920492 in words is "one hundred forty-two million, nine hundred twenty thousand, four hundred ninety-two".