149241940 has 24 divisors (see below), whose sum is σ = 327035520. Its totient is φ = 57101088.

The previous prime is 149241931. The next prime is 149241947. The reversal of 149241940 is 49142941.

It is a junction number, because it is equal to n+sod(n) for n = 149241896 and 149241905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149241947) 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, 161760 + ... + 162679.

It is an arithmetic number, because the mean of its divisors is an integer number (13626480).

Almost surely, 2^149241940 is an apocalyptic number.

149241940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149241940 is an abundant number, since it is smaller than the sum of its proper divisors (177793580).

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

149241940 is a wasteful number, since it uses less digits than its factorization.

149241940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324471 (or 324469 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 149241940 is about 12216.4618445768. The cubic root of 149241940 is about 530.4327070307.

The spelling of 149241940 in words is "one hundred forty-nine million, two hundred forty-one thousand, nine hundred forty".