901872038 has 4 divisors (see below), whose sum is σ = 1352808060. Its totient is φ = 450936018.

The previous prime is 901872001. The next prime is 901872061. The reversal of 901872038 is 830278109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 830278109 = 18143 ⋅45763.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 901871992 and 901872010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225468008 + ... + 225468011.

It is an arithmetic number, because the mean of its divisors is an integer number (338202015).

Almost surely, 2^901872038 is an apocalyptic number.

901872038 is a deficient number, since it is larger than the sum of its proper divisors (450936022).

901872038 is a wasteful number, since it uses less digits than its factorization.

901872038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450936021.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 901872038 is about 30031.1844255267. The cubic root of 901872038 is about 966.1583405626.

The spelling of 901872038 in words is "nine hundred one million, eight hundred seventy-two thousand, thirty-eight".