155290038 has 16 divisors (see below), whose sum is σ = 311138496. Its totient is φ = 51670280.

The previous prime is 155290033. The next prime is 155290049. The reversal of 155290038 is 830092551.

It is a super-2 number, since 2×155290038² = 48229991804082888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155289990 and 155290008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155290033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19608 + ... + 26363.

It is an arithmetic number, because the mean of its divisors is an integer number (19446156).

Almost surely, 2^155290038 is an apocalyptic number.

155290038 is an abundant number, since it is smaller than the sum of its proper divisors (155848458).

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

155290038 is a wasteful number, since it uses less digits than its factorization.

155290038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46539.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 155290038 is about 12461.5423603983. The cubic root of 155290038 is about 537.5033789584.

The spelling of 155290038 in words is "one hundred fifty-five million, two hundred ninety thousand, thirty-eight".