38916090 has 24 divisors (see below), whose sum is σ = 101182068. Its totient is φ = 10377600.

The previous prime is 38916089. The next prime is 38916091. The reversal of 38916090 is 9061983.

It is an interprime number because it is at equal distance from previous prime (38916089) and next prime (38916091).

It can be written as a sum of positive squares in 2 ways, for example, as 38601369 + 314721 = 6213^2 + 561^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38916091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 216111 + ... + 216290.

Almost surely, 2^38916090 is an apocalyptic number.

38916090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38916090 is an abundant number, since it is smaller than the sum of its proper divisors (62265978).

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

38916090 is a wasteful number, since it uses less digits than its factorization.

38916090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432414 (or 432411 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 38916090 is about 6238.2762042090. The cubic root of 38916090 is about 338.8777589385.

The spelling of 38916090 in words is "thirty-eight million, nine hundred sixteen thousand, ninety".