1430072457 has 32 divisors (see below), whose sum is σ = 2155591680. Its totient is φ = 835773120.

The previous prime is 1430072443. The next prime is 1430072461. The reversal of 1430072457 is 7542700341.

It is not a de Polignac number, because 1430072457 - 2⁶ = 1430072393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1430072257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105723 + ... + 118479.

It is an arithmetic number, because the mean of its divisors is an integer number (67362240).

Almost surely, 2^1430072457 is an apocalyptic number.

It is an amenable number.

1430072457 is a deficient number, since it is larger than the sum of its proper divisors (725519223).

1430072457 is a wasteful number, since it uses less digits than its factorization.

1430072457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12893.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 1430072457 is about 37816.2988273575. The cubic root of 1430072457 is about 1126.6421993897.

Adding to 1430072457 its reverse (7542700341), we get a palindrome (8972772798).

The spelling of 1430072457 in words is "one billion, four hundred thirty million, seventy-two thousand, four hundred fifty-seven".