1512940 has 72 divisors (see below), whose sum is σ = 3901968. Its totient is φ = 485760.

The previous prime is 1512923. The next prime is 1512943. The reversal of 1512940 is 492151.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1512943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65769 + ... + 65791.

It is an arithmetic number, because the mean of its divisors is an integer number (54194).

2^1512940 is an apocalyptic number.

1512940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1512940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1950984).

1512940 is an abundant number, since it is smaller than the sum of its proper divisors (2389028).

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

1512940 is a wasteful number, since it uses less digits than its factorization.

1512940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1512940 is about 1230.0162600551. The cubic root of 1512940 is about 114.7996511622.

The spelling of 1512940 in words is "one million, five hundred twelve thousand, nine hundred forty".