149746240 has 56 divisors (see below), whose sum is σ = 407529792. Its totient is φ = 51340800.

The previous prime is 149746237. The next prime is 149746243. The reversal of 149746240 is 42647941.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (149746237) and next prime (149746243).

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 149746240.

It is not an unprimeable number, because it can be changed into a prime (149746243) 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, 31186 + ... + 35665.

Almost surely, 2^149746240 is an apocalyptic number.

149746240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149746240 is an abundant number, since it is smaller than the sum of its proper divisors (257783552).

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

149746240 is an equidigital number, since it uses as much as digits as its factorization.

149746240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66875 (or 66865 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 149746240 is about 12237.0846201209. The cubic root of 149746240 is about 531.0294929846.

The spelling of 149746240 in words is "one hundred forty-nine million, seven hundred forty-six thousand, two hundred forty".