1491912 has 32 divisors (see below), whose sum is σ = 4144800. Its totient is φ = 497232.

The previous prime is 1491911. The next prime is 1491913. The reversal of 1491912 is 2191941.

It is an interprime number because it is at equal distance from previous prime (1491911) and next prime (1491913).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1491911) 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, 3238 + ... + 3669.

It is an arithmetic number, because the mean of its divisors is an integer number (129525).

2^1491912 is an apocalyptic number.

1491912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1491912 is an abundant number, since it is smaller than the sum of its proper divisors (2652888).

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

1491912 is a wasteful number, since it uses less digits than its factorization.

1491912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6922 (or 6912 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 1491912 is about 1221.4384962003. The cubic root of 1491912 is about 114.2653100478.

The spelling of 1491912 in words is "one million, four hundred ninety-one thousand, nine hundred twelve".