1451972742 has 32 divisors (see below), whose sum is σ = 3334677120. Its totient is φ = 416833920.

The previous prime is 1451972689. The next prime is 1451972801. The reversal of 1451972742 is 2472791541.

It is a junction number, because it is equal to n+sod(n) for n = 1451972694 and 1451972703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 577683 + ... + 580190.

It is an arithmetic number, because the mean of its divisors is an integer number (104208660).

Almost surely, 2^1451972742 is an apocalyptic number.

1451972742 is an abundant number, since it is smaller than the sum of its proper divisors (1882704378).

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

1451972742 is a wasteful number, since it uses less digits than its factorization.

1451972742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157908.

The product of its digits is 141120, while the sum is 42.

The square root of 1451972742 is about 38104.7600963449. The cubic root of 1451972742 is about 1132.3642622964.

The spelling of 1451972742 in words is "one billion, four hundred fifty-one million, nine hundred seventy-two thousand, seven hundred forty-two".