154290492 has 18 divisors (see below), whose sum is σ = 390012168. Its totient is φ = 51430152.

The previous prime is 154290491. The next prime is 154290497. The reversal of 154290492 is 294092451.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4285847 = 154290492 / (1 + 5 + 4 + 2 + 9 + 0 + 4 + 9 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154290491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2142888 + ... + 2142959.

Almost surely, 2^154290492 is an apocalyptic number.

154290492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

154290492 is an abundant number, since it is smaller than the sum of its proper divisors (235721676).

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

154290492 is a wasteful number, since it uses less digits than its factorization.

154290492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285857 (or 4285852 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 154290492 is about 12421.3723879449. The cubic root of 154290492 is about 536.3476572434.

The spelling of 154290492 in words is "one hundred fifty-four million, two hundred ninety thousand, four hundred ninety-two".