142893904 has 40 divisors (see below), whose sum is σ = 287436960. Its totient is φ = 68734848.

The previous prime is 142893893. The next prime is 142893913. The reversal of 142893904 is 409398241.

142893904 = T₂₂ + T₂₃ + ... + T₉₄₉.

It is a super-2 number, since 2×142893904² = 40837335600722432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253527 + ... + 254089.

It is an arithmetic number, because the mean of its divisors is an integer number (7185924).

Almost surely, 2^142893904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142893904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143718480).

142893904 is an abundant number, since it is smaller than the sum of its proper divisors (144543056).

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

142893904 is a wasteful number, since it uses less digits than its factorization.

142893904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 142893904 is about 11953.8238233630. The cubic root of 142893904 is about 522.8027948157.

The spelling of 142893904 in words is "one hundred forty-two million, eight hundred ninety-three thousand, nine hundred four".