1428940953 has 32 divisors (see below), whose sum is σ = 2358558720. Its totient is φ = 847590480.

The previous prime is 1428940949. The next prime is 1428940957. The reversal of 1428940953 is 3590498241.

It is an interprime number because it is at equal distance from previous prime (1428940949) and next prime (1428940957).

It is not a de Polignac number, because 1428940953 - 2² = 1428940949 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1428940899 and 1428940908.

It is not an unprimeable number, because it can be changed into a prime (1428940957) 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, 37225 + ... + 65142.

It is an arithmetic number, because the mean of its divisors is an integer number (73704960).

Almost surely, 2^1428940953 is an apocalyptic number.

It is an amenable number.

1428940953 is a deficient number, since it is larger than the sum of its proper divisors (929617767).

1428940953 is a wasteful number, since it uses less digits than its factorization.

1428940953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102434 (or 102428 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 1428940953 is about 37801.3353335567. The cubic root of 1428940953 is about 1126.3449798297.

The spelling of 1428940953 in words is "one billion, four hundred twenty-eight million, nine hundred forty thousand, nine hundred fifty-three".