38877090 has 96 divisors (see below), whose sum is σ = 110808000. Its totient is φ = 8701056.

The previous prime is 38877089. The next prime is 38877103. The reversal of 38877090 is 9077883.

It is a super-2 number, since 2×38877090² = 3022856253736200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77661 + ... + 78159.

It is an arithmetic number, because the mean of its divisors is an integer number (1154250).

Almost surely, 2^38877090 is an apocalyptic number.

38877090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38877090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55404000).

38877090 is an abundant number, since it is smaller than the sum of its proper divisors (71930910).

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

38877090 is a wasteful number, since it uses less digits than its factorization.

38877090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 38877090 is about 6235.1495571478. The cubic root of 38877090 is about 338.7645182886.

The spelling of 38877090 in words is "thirty-eight million, eight hundred seventy-seven thousand, ninety".