119997990 has 128 divisors (see below), whose sum is σ = 368824320. Its totient is φ = 27195264.

The previous prime is 119997979. The next prime is 119998013. The reversal of 119997990 is 99799911.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 63 ways as a sum of consecutive naturals, for example, 326787 + ... + 327153.

It is an arithmetic number, because the mean of its divisors is an integer number (2881440).

Almost surely, 2^119997990 is an apocalyptic number.

119997990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 119997990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184412160).

119997990 is an abundant number, since it is smaller than the sum of its proper divisors (248826330).

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

119997990 is a wasteful number, since it uses less digits than its factorization.

119997990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 413343, while the sum is 54.

The square root of 119997990 is about 10954.3594061908. The cubic root of 119997990 is about 493.2396609139.

The spelling of 119997990 in words is "one hundred nineteen million, nine hundred ninety-seven thousand, nine hundred ninety".