149298390 has 160 divisors (see below), whose sum is σ = 431244000. Its totient is φ = 36951552.

The previous prime is 149298341. The next prime is 149298419. The reversal of 149298390 is 93892941.

149298390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1369656 + ... + 1369764.

It is an arithmetic number, because the mean of its divisors is an integer number (2695275).

Almost surely, 2^149298390 is an apocalyptic number.

149298390 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 149298390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215622000).

149298390 is an abundant number, since it is smaller than the sum of its proper divisors (281945610).

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

149298390 is a wasteful number, since it uses less digits than its factorization.

149298390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 149298390 is about 12218.7720332282. The cubic root of 149298390 is about 530.4995764193.

The spelling of 149298390 in words is "one hundred forty-nine million, two hundred ninety-eight thousand, three hundred ninety".