149456340 has 120 divisors (see below), whose sum is σ = 511533792. Its totient is φ = 36227520.

The previous prime is 149456311. The next prime is 149456341. The reversal of 149456340 is 43654941.

149456340 is a `hidden beast` number, since 1 + 4 + 94 + 563 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 149456295 and 149456304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149456341) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13627 + ... + 22013.

Almost surely, 2^149456340 is an apocalyptic number.

149456340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149456340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255766896).

149456340 is an abundant number, since it is smaller than the sum of its proper divisors (362077452).

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

149456340 is a wasteful number, since it uses less digits than its factorization.

149456340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8419 (or 8408 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 149456340 is about 12225.2337400968. The cubic root of 149456340 is about 530.6865908854.

The spelling of 149456340 in words is "one hundred forty-nine million, four hundred fifty-six thousand, three hundred forty".