149285780 has 24 divisors (see below), whose sum is σ = 358286208. Its totient is φ = 51183648.

The previous prime is 149285779. The next prime is 149285839. The reversal of 149285780 is 87582941.

It is a super-2 number, since 2×149285780² = 44572488220416800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533024 + ... + 533303.

It is an arithmetic number, because the mean of its divisors is an integer number (14928592).

Almost surely, 2^149285780 is an apocalyptic number.

149285780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149285780 is an abundant number, since it is smaller than the sum of its proper divisors (209000428).

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

149285780 is a wasteful number, since it uses less digits than its factorization.

149285780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066343 (or 1066341 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 149285780 is about 12218.2560130323. The cubic root of 149285780 is about 530.4846403618.

The spelling of 149285780 in words is "one hundred forty-nine million, two hundred eighty-five thousand, seven hundred eighty".