149764398 has 16 divisors (see below), whose sum is σ = 342318720. Its totient is φ = 42789816.

The previous prime is 149764393. The next prime is 149764409. The reversal of 149764398 is 893467941.

It is a self number, because there is not a number n which added to its sum of digits gives 149764398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149764393) 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, 1782868 + ... + 1782951.

It is an arithmetic number, because the mean of its divisors is an integer number (21394920).

Almost surely, 2^149764398 is an apocalyptic number.

149764398 is an abundant number, since it is smaller than the sum of its proper divisors (192554322).

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

149764398 is a wasteful number, since it uses less digits than its factorization.

149764398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565831.

The product of its digits is 1306368, while the sum is 51.

The square root of 149764398 is about 12237.8265227123. The cubic root of 149764398 is about 531.0509560585.

The spelling of 149764398 in words is "one hundred forty-nine million, seven hundred sixty-four thousand, three hundred ninety-eight".