1945298754 has 160 divisors (see below), whose sum is σ = 5196254976. Its totient is φ = 532344960.

The previous prime is 1945298749. The next prime is 1945298777. The reversal of 1945298754 is 4578925491.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 1945298754.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2978692 + ... + 2979344.

Almost surely, 2^1945298754 is an apocalyptic number.

1945298754 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1945298754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2598127488).

1945298754 is an abundant number, since it is smaller than the sum of its proper divisors (3250956222).

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

1945298754 is a wasteful number, since it uses less digits than its factorization.

1945298754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782 (or 773 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 1945298754 is about 44105.5410804584. The cubic root of 1945298754 is about 1248.3281658266.

The spelling of 1945298754 in words is "one billion, nine hundred forty-five million, two hundred ninety-eight thousand, seven hundred fifty-four".