1429420731 has 4 divisors (see below), whose sum is σ = 1905894312. Its totient is φ = 952947152.

The previous prime is 1429420703. The next prime is 1429420739. The reversal of 1429420731 is 1370249241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1429420731 - 2¹³ = 1429412539 is a prime.

It is a super-2 number, since 2×1429420731² = 4086487252425148722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1429420692 and 1429420701.

It is not an unprimeable number, because it can be changed into a prime (1429420739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238236786 + ... + 238236791.

It is an arithmetic number, because the mean of its divisors is an integer number (476473578).

Almost surely, 2^1429420731 is an apocalyptic number.

1429420731 is a deficient number, since it is larger than the sum of its proper divisors (476473581).

1429420731 is an equidigital number, since it uses as much as digits as its factorization.

1429420731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476473580.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 1429420731 is about 37807.6808466216. The cubic root of 1429420731 is about 1126.4710254094.

Adding to 1429420731 its reverse (1370249241), we get a palindrome (2799669972).

The spelling of 1429420731 in words is "one billion, four hundred twenty-nine million, four hundred twenty thousand, seven hundred thirty-one".