149401740 has 24 divisors (see below), whose sum is σ = 418325040. Its totient is φ = 39840448.

The previous prime is 149401739. The next prime is 149401751. The reversal of 149401740 is 47104941.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 149401698 and 149401707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1244955 + ... + 1245074.

It is an arithmetic number, because the mean of its divisors is an integer number (17430210).

Almost surely, 2^149401740 is an apocalyptic number.

149401740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149401740 is an abundant number, since it is smaller than the sum of its proper divisors (268923300).

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

149401740 is a wasteful number, since it uses less digits than its factorization.

149401740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2490041 (or 2490039 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 149401740 is about 12223.0004499714. Note that the first 3 decimals coincide. The cubic root of 149401740 is about 530.6219588173.

The spelling of 149401740 in words is "one hundred forty-nine million, four hundred one thousand, seven hundred forty".