122626990 has 16 divisors (see below), whose sum is σ = 220893552. Its totient is φ = 49014144.

The previous prime is 122626963. The next prime is 122626997. The reversal of 122626990 is 99626221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122626997) 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, 12502 + ... + 20038.

It is an arithmetic number, because the mean of its divisors is an integer number (13805847).

Almost surely, 2^122626990 is an apocalyptic number.

122626990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122626990 is a deficient number, since it is larger than the sum of its proper divisors (98266562).

122626990 is a wasteful number, since it uses less digits than its factorization.

122626990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9171.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 122626990 is about 11073.7071480151. The cubic root of 122626990 is about 496.8157508298.

The spelling of 122626990 in words is "one hundred twenty-two million, six hundred twenty-six thousand, nine hundred ninety".