1430428734 has 48 divisors (see below), whose sum is σ = 3673208448. Its totient is φ = 408692952.

The previous prime is 1430428733. The next prime is 1430428763. The reversal of 1430428734 is 4378240341.

It is a super-2 number, since 2×1430428734² = 4092252726105685512, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430428733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206832 + ... + 213635.

It is an arithmetic number, because the mean of its divisors is an integer number (76525176).

Almost surely, 2^1430428734 is an apocalyptic number.

1430428734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1430428734 is an abundant number, since it is smaller than the sum of its proper divisors (2242779714).

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

1430428734 is an equidigital number, since it uses as much as digits as its factorization.

1430428734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420491 (or 420479 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 1430428734 is about 37821.0091615758. The cubic root of 1430428734 is about 1126.7357525454.

The spelling of 1430428734 in words is "one billion, four hundred thirty million, four hundred twenty-eight thousand, seven hundred thirty-four".