120397490 has 32 divisors (see below), whose sum is σ = 235491840. Its totient is φ = 44150400.

The previous prime is 120397489. The next prime is 120397499. The reversal of 120397490 is 94793021.

It is a self number, because there is not a number n which added to its sum of digits gives 120397490.

It is not an unprimeable number, because it can be changed into a prime (120397499) 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, 4331 + ... + 16110.

It is an arithmetic number, because the mean of its divisors is an integer number (7359120).

Almost surely, 2^120397490 is an apocalyptic number.

120397490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120397490 is a deficient number, since it is larger than the sum of its proper divisors (115094350).

120397490 is a wasteful number, since it uses less digits than its factorization.

120397490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20498.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 120397490 is about 10972.5790040446. The cubic root of 120397490 is about 493.7864227791.

The spelling of 120397490 in words is "one hundred twenty million, three hundred ninety-seven thousand, four hundred ninety".