149893470 has 128 divisors (see below), whose sum is σ = 428544000. Its totient is φ = 37169280.

The previous prime is 149893441. The next prime is 149893501. The reversal of 149893470 is 74398941.

149893470 is a `hidden beast` number, since 1 + 4 + 98 + 93 + 470 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 312691 + ... + 313169.

It is an arithmetic number, because the mean of its divisors is an integer number (3348000).

Almost surely, 2^149893470 is an apocalyptic number.

149893470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 149893470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214272000).

149893470 is an abundant number, since it is smaller than the sum of its proper divisors (278650530).

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

149893470 is a wasteful number, since it uses less digits than its factorization.

149893470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 149893470 is about 12243.0988724260. The cubic root of 149893470 is about 531.2034714498.

The spelling of 149893470 in words is "one hundred forty-nine million, eight hundred ninety-three thousand, four hundred seventy".