1545742080 has 216 divisors, whose sum is σ = 5401556160. Its totient is φ = 408084480.

The previous prime is 1545742073. The next prime is 1545742103. The reversal of 1545742080 is 802475451.

1545742080 is a `hidden beast` number, since 1 + 5 + 4 + 574 + 2 + 0 + 80 = 666.

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, 1255065 + ... + 1256295.

Almost surely, 2^1545742080 is an apocalyptic number.

1545742080 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 1545742080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2700778080).

1545742080 is an abundant number, since it is smaller than the sum of its proper divisors (3855814080).

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

1545742080 is a wasteful number, since it uses less digits than its factorization.

1545742080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367 (or 1350 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 1545742080 is about 39315.9265438321. The cubic root of 1545742080 is about 1156.2338419753.

The spelling of 1545742080 in words is "one billion, five hundred forty-five million, seven hundred forty-two thousand, eighty".