120401690 has 32 divisors (see below), whose sum is σ = 221771520. Its totient is φ = 47047104.

The previous prime is 120401653. The next prime is 120401693. The reversal of 120401690 is 96104021.

It is a happy number.

It is a super-2 number, since 2×120401690² = 28993133909712200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120401693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194201 + ... + 194819.

It is an arithmetic number, because the mean of its divisors is an integer number (6930360).

Almost surely, 2^120401690 is an apocalyptic number.

120401690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120401690 is a deficient number, since it is larger than the sum of its proper divisors (101369830).

120401690 is a wasteful number, since it uses less digits than its factorization.

120401690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 120401690 is about 10972.7703885573. The cubic root of 120401690 is about 493.7921645346.

The spelling of 120401690 in words is "one hundred twenty million, four hundred one thousand, six hundred ninety".