13772990 has 64 divisors (see below), whose sum is σ = 31961088. Its totient is φ = 4147200.

The previous prime is 13772977. The next prime is 13773013. The reversal of 13772990 is 9927731.

13772990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23582 + ... + 24158.

It is an arithmetic number, because the mean of its divisors is an integer number (499392).

Almost surely, 2^13772990 is an apocalyptic number.

13772990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13772990 is an abundant number, since it is smaller than the sum of its proper divisors (18188098).

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

13772990 is a wasteful number, since it uses less digits than its factorization.

13772990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 13772990 is about 3711.1979198097. The cubic root of 13772990 is about 239.7044394066.

The spelling of 13772990 in words is "thirteen million, seven hundred seventy-two thousand, nine hundred ninety".