38403772 has 24 divisors (see below), whose sum is σ = 75846960. Its totient is φ = 16853760.

The previous prime is 38403763. The next prime is 38403779. The reversal of 38403772 is 27730483.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38403779) 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, 13773 + ... + 16324.

It is an arithmetic number, because the mean of its divisors is an integer number (3160290).

Almost surely, 2^38403772 is an apocalyptic number.

It is an amenable number.

38403772 is a deficient number, since it is larger than the sum of its proper divisors (37443188).

38403772 is a wasteful number, since it uses less digits than its factorization.

38403772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30141 (or 30139 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 38403772 is about 6197.0776983995. The cubic root of 38403772 is about 337.3841123841.

Subtracting from 38403772 its reverse (27730483), we obtain a square (10673289 = 3267²).

The spelling of 38403772 in words is "thirty-eight million, four hundred three thousand, seven hundred seventy-two".