1542323664 has 120 divisors (see below), whose sum is σ = 4966146432. Its totient is φ = 437702400.

The previous prime is 1542323611. The next prime is 1542323677. The reversal of 1542323664 is 4663232451.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147142 + ... + 157274.

Almost surely, 2^1542323664 is an apocalyptic number.

1542323664 is a gapful number since it is divisible by the number (14) 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 1542323664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2483073216).

1542323664 is an abundant number, since it is smaller than the sum of its proper divisors (3423822768).

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

1542323664 is a wasteful number, since it uses less digits than its factorization.

1542323664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10305 (or 10296 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 1542323664 is about 39272.4288018961. The cubic root of 1542323664 is about 1155.3808739952.

The spelling of 1542323664 in words is "one billion, five hundred forty-two million, three hundred twenty-three thousand, six hundred sixty-four".